CN215369867U - Subway tunnel construction strutting arrangement who need not to dismantle - Google Patents
Subway tunnel construction strutting arrangement who need not to dismantle Download PDFInfo
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- CN215369867U CN215369867U CN202023166604.3U CN202023166604U CN215369867U CN 215369867 U CN215369867 U CN 215369867U CN 202023166604 U CN202023166604 U CN 202023166604U CN 215369867 U CN215369867 U CN 215369867U
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Abstract
The utility model discloses a subway tunnel construction supporting device without disassembly, which comprises an annular steel support and plain concrete supports, wherein the annular steel support is formed by connecting a plurality of sections of arc-shaped steel members, each plain concrete support comprises a first horizontal plain concrete support, a second horizontal plain concrete support, an upper vertical plain concrete support and a lower vertical plain concrete support, the four plain concrete supports are arranged in the annular steel support and are mutually connected at the circle center to form a cross support, and the four plain concrete supports are connected with the annular steel support. In the place where the subway construction is not beneficial to using the shield machine through a station and an important building, the formed subway tunnel can be supported, the supporting device can be mechanically disassembled without manual disassembly, the labor intensity of constructors can be greatly reduced, and the construction safety is improved.
Description
Technical Field
The utility model relates to a tunnel construction device, in particular to a supporting device for subway tunnel construction.
Background
With the high-speed development of economy in China, the urbanization process is rapidly promoted, a large number of people continuously rush into large cities, great pressure is applied to urban traffic, and in order to solve the increasingly serious problem of ground traffic jam, more and more cities solve the traffic problem of people going out by building subways. When a subway is built, a shield machine is adopted to tunnel a subway tunnel, the subway tunnel may need to pass through a station and an important building, the shield machine can destroy the initial stress state of a soil layer in the excavation process, a certain degree of disturbance is inevitably caused to the surrounding soil body, the disturbance is expressed as the settlement or the uplift of the stratum, the soil pressure in the surrounding soil layer and the change of the pore water pressure, and when the shield machine is close to the shield machine, the disturbance can seriously influence the safety and the normal use of the existing structure. If a shield machine is not used, manual excavation is adopted, steel supports are used for the excavated tunnel part, the supports need to be manually removed after the tunnel is formed, the manual removal of the steel supports is high in labor intensity, and is also a link of high accident occurrence, so that the life safety of constructors is seriously benefited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a subway tunnel construction supporting device without disassembly, which can support a formed subway tunnel in places which are not beneficial to using a shield machine, such as stations, important buildings and the like, and the supporting device does not need to be disassembled manually, thereby reducing the labor intensity of constructors and improving the construction safety.
The utility model provides a subway tunnel construction strutting arrangement that need not to dismantle, includes annular steel shotcrete, plain concrete support, annular steel shotcrete is by the convex steel member interconnect of multistage formation, plain concrete supports including first level plain concrete support, the plain concrete of second level support, goes up perpendicular plain concrete support, the plain concrete of droop support, and four plain concrete supports are in annular steel shotcrete, and at centre of a circle department interconnect formation cross support, four plain concrete supports are connected with annular steel shotcrete.
Furthermore, an oblique plain concrete support is arranged between the horizontal plain concrete support and the vertical plain concrete support, and the oblique plain concrete support is connected with the horizontal and vertical plain concrete supports at the circle center and connected with the annular steel support on the circumference.
Preferably, one of the plain concrete supports is located between the horizontal plain concrete support and the vertical plain concrete support.
Preferably, the inclined plain concrete supports are two and are uniformly distributed between the horizontal plain concrete support and the vertical plain concrete support.
Preferably, the annular steel support consists of 12 sections of circular arc steel members, and the specification and the size of each section of circular arc steel member are the same.
Preferably, the annular steel support consists of 8 sections of circular arc-shaped steel members, and the specifications and the sizes of the circular arc-shaped steel members are the same.
Preferably, the annular steel support consists of 16 sections of circular arc-shaped steel members, and the specification and the size of each section of circular arc-shaped steel member are the same.
Furthermore, the arc-shaped steel members are connected with each other through bolts.
Furthermore, the plain concrete supports are connected with the annular steel supports through bolts, and the plain concrete supports are connected through steel members.
Preferably, the plain concrete support cross section is rectangular.
The utility model can support the formed subway tunnel through the station and the place where the important building is not beneficial to using the shield machine, the support device does not need to be manually dismantled, the labor intensity of constructors is reduced, and the construction safety is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a left side view of the utility model shown in fig. 1.
In the figure: 1-first horizontal plain concrete support, 2-upper vertical plain concrete support, 3-second horizontal plain concrete support, 4-lower vertical plain concrete support, 5-annular steel support, 6-arc steel member and 7-oblique plain concrete support.
Detailed Description
The plain concrete support of the utility model means that the concrete does not contain steel , and the plain concrete has good compressive strength and is easy to crush.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to fig. 1-2.
The utility model discloses a subway tunnel construction supporting device without disassembly, which comprises an annular steel support 5 and plain concrete supports, wherein the annular steel support 5 is formed by connecting a plurality of sections of arc-shaped steel members 6, each plain concrete support comprises a first horizontal plain concrete support 1, a second horizontal plain concrete support 3, an upper vertical plain concrete support 2 and a lower vertical plain concrete support 4, the four plain concrete supports are supported in the annular steel support and are mutually connected at the circle center to form a cross support, and the four plain concrete supports are connected with the annular steel support.
Furthermore, an oblique plain concrete support 7 is arranged between the horizontal plain concrete support and the vertical plain concrete support, and the oblique plain concrete support 7 is connected with the horizontal and vertical plain concrete supports at the circle center and connected with the annular steel support 5 on the circumference.
Preferably, one of said plain concrete supports 7 is located between the horizontal plain concrete support and the vertical plain concrete support.
Preferably, there are two of the plain concrete supports 7 uniformly distributed between the horizontal plain concrete support and the vertical plain concrete support.
Preferably, the annular steel support 5 is composed of 12 sections of circular arc-shaped steel members 6, and the specifications and the sizes of each section of circular arc-shaped steel member 6 are the same.
Preferably, the annular steel support 5 is composed of 8 sections of circular arc-shaped steel members 6, and the specifications and the sizes of the circular arc-shaped steel members 6 are the same.
Preferably, the annular steel support 5 consists of 16 sections of circular arc-shaped steel members 6, and the specification and the size of each section of circular arc-shaped steel member 6 are the same.
Further, the arc-shaped steel members 6 are connected with each other by bolts.
Further, the plain concrete supports are connected with the annular steel supports 5 through bolts, and the plain concrete supports are connected through steel members. And after the prefabricated member and the steel member are connected, the prefabricated concrete is cast in place by using a template in the middle.
Preferably, the cross section of the plain concrete support is rectangular, and the size of the rectangular cross section can be adjusted according to surrounding rocks, such as 10x10 mm, 15x15 mm and 20x20 mm.
When the subway tunnel is constructed, when the shield machine reaches a station, an important building and other places needing disturbance reduction, the shield machine stops construction, other machines are used manually to firstly excavate soil bodies with 1/4 circles on the upper portion of the circular cross section, the excavated portion of the 1/4 circles on the upper portion is constructed into an arc-shaped steel support, an upper vertical plain concrete support and a first horizontal plain concrete support, the length of the upper vertical plain concrete support and the length of the first horizontal concrete support are equal to the radius of the circular cross section, and the upper vertical plain concrete support and the first horizontal concrete support are connected at the circle center and are connected with the arc-shaped steel support at the circumference. And excavating another 1/4 circular soil body on the upper part, and constructing the part circular steel support and a second horizontal plain concrete support. And excavating the first 1/4 round soil body at the lower part of the circular cross section, and applying an arc-shaped steel support and a lower vertical plain concrete support. Finally, another 1/4 round soil body at the lower part is excavated and used as a circular steel support. The circular arc-shaped steel supports are sequentially connected with one another to form a circular steel support, and the plain concrete supports in the circular arc-shaped steel supports are connected with one another at the circle center to form a cross-shaped plain concrete support and are connected with the circular steel support at the circumference.
One such support means is made for each forward advance distance, and the spacing between support means can be determined according to the surrounding rock conditions. After the tunnel construction is completed through the section needing disturbance reduction, the shield tunneling machine is started to advance, plain concrete supports are broken, duct pieces are installed on the tunnel wall, and synchronous grouting is performed to complete the tunnel construction of the section. Because plain concrete does not contain steel , it is easy to crush, and can be directly broken by the shield mechanism, avoiding manual dismantling, not only greatly reducing labor intensity, but also improving construction safety.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a subway tunnel construction strutting arrangement that need not to dismantle which characterized in that: including annular steel shotcrete (5), plain concrete support, annular steel shotcrete (5) are connected gradually each other by the convex steel member of multistage (6) and are taken shape, plain concrete supports including first level plain concrete support (1), second level plain concrete support (3), go up perpendicular plain concrete support (2), lower plain concrete support (4), and four plain concrete supports are in annular steel shotcrete, and the interconnect forms the cross and supports in centre of a circle department, and four plain concrete supports are connected with annular steel shotcrete (5).
2. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: and an oblique plain concrete support (7) is arranged between the horizontal plain concrete support and the vertical plain concrete support, and the oblique plain concrete support (7) is connected with the horizontal and vertical plain concrete supports at the circle center and connected with the annular steel support (5) on the circumference.
3. A subway tunnel construction supporting device without disassembly as claimed in claim 2, wherein: one inclined plain concrete support (7) is arranged between the horizontal plain concrete support and the vertical plain concrete support.
4. A subway tunnel construction supporting device without disassembly as claimed in claim 2, wherein: the two inclined plain concrete supports (7) are uniformly distributed between the horizontal plain concrete support and the vertical plain concrete support.
5. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: the annular steel support (5) is composed of 12 sections of circular arc-shaped steel components (6), and the specifications and the sizes of each section of circular arc-shaped steel component (6) are the same.
6. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: the annular steel support (5) is composed of 8 sections of circular arc-shaped steel components (6), and the specifications and the sizes of each section of circular arc-shaped steel component (6) are the same.
7. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: the annular steel support (5) is composed of 16 sections of circular arc-shaped steel components (6), and the specifications and the sizes of each section of circular arc-shaped steel component (6) are the same.
8. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: the arc-shaped steel members (6) are connected with each other through bolts.
9. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: the plain concrete supports are connected with the annular steel supports (5) through bolts, and the plain concrete supports are connected through steel members.
10. A subway tunnel construction supporting device without disassembly as claimed in claim 1, wherein: the cross section of the plain concrete support is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023166604.3U CN215369867U (en) | 2020-12-24 | 2020-12-24 | Subway tunnel construction strutting arrangement who need not to dismantle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023166604.3U CN215369867U (en) | 2020-12-24 | 2020-12-24 | Subway tunnel construction strutting arrangement who need not to dismantle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215369867U true CN215369867U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023166604.3U Active CN215369867U (en) | 2020-12-24 | 2020-12-24 | Subway tunnel construction strutting arrangement who need not to dismantle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215369867U (en) |
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2020
- 2020-12-24 CN CN202023166604.3U patent/CN215369867U/en active Active
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